Heart rate variability and heart rate in healthy volunteers. Is the female autonomic nervous system cardioprotective?

Ramaekers, Dirk; Ector, Hugo; Aubert, André; Rubens, A; Werf, Frans Van de

doi:10.1053/euhj.1998.1084

Cited by 282 publications

(228 citation statements)

References 36 publications

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“…Indeed, although no significant statistical differences between HP complexity in men and women were detected in any age group, likely as a result of the low statistical power of the study for this specific endpoint, we observed that NCIHP was systematically larger in women than in men in any age group except 61-70, thus suggesting that after menopause complexity of the HP series in women dramatically dropped. This result confirmed the progressive decrease of gender differences with age reported in [13,19,23,38,41].…”

Section: Complexity Of the Hp Variability At Rest: Aging And Gender Esupporting

confidence: 88%

Effect of the Postural Challenge on the Dependence of the Cardiovascular Control Complexity on Age

Catai

Takahashi

Perseguini

et al. 2014

Entropy

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Short-term complexity of heart period (HP) and systolic arterial pressure (SAP) was computed to detect age and gender influences over cardiovascular control in resting supine condition (REST) and during standing (STAND). Healthy subjects (n = 110, men = 55) were equally divided into five groups (21-30; 31-40; 41-50; 51-60; and 61-70 years of age). HP and SAP series were recorded for 15 min at REST and during STAND. A normalized complexity index (NCI) based on conditional entropy was assessed. At REST we found that both NCIHP and NCISAP decreased with age in the overall population, but only women were OPEN ACCESSEntropy 2014, 16 6687 responsible for this trend. During STAND we observed that both NCIHP and NCISAP were unrelated to age in the overall population, even when divided by gender. When the variation of NCI in response to STAND (ΔNCI = NCI at REST-NCI during STAND) was computed individually, we found that ΔNCIHP progressively decreased with age in the overall population, and women were again responsible for this trend. Conversely, ΔNCISAP was unrelated to age and gender. This study stresses that the complexity of cardiovascular control and its ability to respond to stressors are more importantly lost with age in women than in men.

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Section: Complexity Of the Hp Variability At Rest: Aging And Gender Esupporting

confidence: 88%

Effect of the Postural Challenge on the Dependence of the Cardiovascular Control Complexity on Age

Catai

Takahashi

Perseguini

et al. 2014

Entropy

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“…Healthy subjects over 40 years old showed a smaller decrease in HF as well as a decreasing Valsalva ratio. 34 Saito et al 3 reported the prevalence of IBS as 13.5% in under 45 seconds and 9.4% in over 45 seconds. We speculate that the decline in IBS symptoms as people age may be influenced by the reduced activity of the ANS.…”

Section: Discussionmentioning

confidence: 99%

Increased Postprandial Colonic Motility and Autonomic Nervous System Activity in Patients With Irritable Bowel Syndrome: A Prospective Study

Tanaka

Kanazawa

Palsson

et al. 2018

J Neurogastroenterol Motil

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Background/AimsThe prevalence and severity of irritable bowel syndrome (IBS) declines with age, but the cause of this is unknown. This study tested 2 hypotheses: (1) autonomic nervous system responses to eating and bowel distention, measured by heart rate variability (HRV), differs by age in IBS patients and (2) HRV is correlated with colonic motility and IBS symptoms. MethodsOne hundred and fifty-six Rome III positive IBS patients and 31 healthy controls underwent colonic manometry with bag distention in the descending colon, followed by ingestion of an 810-kcal meal. HRV, evaluated by low frequency (%LF; 0.04-0.15 Hz) component, high frequency (%HF; 0.15-0.40 Hz) component, and the LF/HF ratio, was measured during colonic distention and after the meal. Motility index and subjective symptom scores were simultaneously quantified. ResultsBoth colonic distention and eating decreased %HF and increased the LF/HF ratio, and both indices of autonomic nervous system correlated with age. In IBS patients, %HF negatively correlated with the postprandial motility index after adjusting for age. The %HF and LF/HF ratios also correlated with psychological symptoms but not bowel symptoms in IBS patients. ConclusionDecreased vagal activity is associated with increase in age and greater postprandial colonic motility in patients with IBS, which may contribute to postprandial symptoms. (J Neurogastroenterol Motil 2018;24:87-95)

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“…The data are less consistent on the impact of sex and race. Some studies have reported that women have greater levels of HF power Ryan et al, 1994) while others report no sex difference (Evans et al, 2001;Laitinen et al, 1998;Pikkujamsa et al, 2001;Ramaekers et al, 1998). Fewer studies still report on the impact of race on RRV.…”

Section: Introductionmentioning

confidence: 99%

Cardiac autonomic control and the effects of age, race, and sex: The CARDIA study

Sloan

Huang

McCreath

et al. 2008

Autonomic Neuroscience

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Heart rate variability and heart rate in healthy volunteers. Is the female autonomic nervous system cardioprotective?

Cited by 282 publications

References 36 publications

Effect of the Postural Challenge on the Dependence of the Cardiovascular Control Complexity on Age

Effect of the Postural Challenge on the Dependence of the Cardiovascular Control Complexity on Age

Increased Postprandial Colonic Motility and Autonomic Nervous System Activity in Patients With Irritable Bowel Syndrome: A Prospective Study

Cardiac autonomic control and the effects of age, race, and sex: The CARDIA study

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